Methodology
How We Measure Improvement
Version 1.0 — April 1, 2026
The Composite Body Score
Every Mithrion assessment produces a Composite Body Score — a single number out of 100 that reflects three measurable aspects of physical structure.
Posture Score — 40 points
Assessed across nine postural deviations: the structural misalignments that accumulate from sedentary work patterns. Each deviation is rated on a three-tier scale — normal, needs improvement, or severe. The weighting is non-linear. Deviations that create downstream structural load on adjacent joints and muscle groups carry more weight than cosmetic asymmetries, and the gap between “needs improvement” and “severe” is not uniform across all nine deviations. The score reflects physiological consequence, not a simple count.
Body Composition Score — 30 points
Fat distribution and muscle mass are each assessed across multiple quantified brackets and contribute equally to this component. The score reflects where each sits relative to a structurally functional range — not against an aesthetic ideal.
Muscle Balance Score — 30 points
Assessed across four major muscle groups. Weighting is non-linear. Muscle groups that bear primary structural load in desk-working postures are weighted more heavily than peripheral groups. Imbalances that directly affect joint mechanics score higher than those with limited functional consequence.
How Improvement Is Measured
CBS improvement is the gain in Composite Body Score between an initial assessment and a subsequent one. A participant who scores 35 at baseline and 63 at four weeks has gained 28 points. Comparisons between groups use the same metric: average CBS gain over the same measurement period.
The 2× Figure at Four Weeks
Mithrion's 120-person validation cohort was assessed at baseline and at four weeks. CBS gains were compared against published outcome benchmarks for elite personal coaching on a matched group profile — same occupational composition, same physiological baseline distribution, same four-week window.
Mithrion participants gained twice the CBS improvement of the benchmark group at four weeks.
The 8× Figure at Six Months
At six months, CBS improvement in the Mithrion cohort reached 8× the benchmark. The widening gap is structural, not incidental.
Two compounding dynamics drive it.
First, a complete physiological picture — one that updates as the body responds to the protocol — allows each subsequent adjustment to be more precisely targeted. A standard coaching program applies a fixed or loosely adapted plan. Mithrion's protocol tightens with every re-assessment because the data layer underneath it grows richer over time.
Second, structural fixes applied in the correct sequence produce interdependent improvements. Correcting a primary postural deviation reduces compensatory load on adjacent structures. Those structures then respond more efficiently to training input. The score gains accelerate because the body is being addressed in the order that maximises each fix's downstream effect — not in the order that is easiest to prescribe.
The 8× figure represents a conservative reading of the six-month data.
Usage Notes
- This note must be linked or summarised wherever the 2× or 8× figures appear in public-facing copy.
- Do not paraphrase the comparison methodology. State it as written: CBS gains vs. published elite coaching benchmarks on a matched group profile.
- Do not use this note to imply medical diagnosis, treatment, or clinical outcomes. The Composite Body Score measures structural and compositional performance — not medical condition.